#099EBB
Closest named color: Turquoise Blue (#06B1C4). oklch(64.5% 0.114 217.2), rgb(9, 158, 187).
Aa
Black text reads best on this color (6.61:1).
About this color
#099EBB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.114 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.054 away. Black text reads best on it, at 6.61:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.61:1 |
| White text | 3.17:1 |
Values
| HEX | #099EBB |
| RGB | rgb(9, 158, 187) |
| HSL | hsl(190, 91%, 38%) |
| OKLCH | oklch(64.5% 0.114 217.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #099EBB | 3.17:1 | AA large text | Lc -63.7 | Content text, not long reading |
| Black text on #099EBB | 6.61:1 | AA | Lc 45.8 | Large or bold text, headings |
| #099EBB text on white | 3.17:1 | AA large text | Lc 58.3 | Large or bold text, headings |
| #099EBB text on black | 6.61:1 | AA | Lc -43.5 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C3DFE7
oklch(88.6% 0.032 216.8)
-
Step 300
300
#98CAD8
oklch(80.9% 0.056 216.9)
-
Step 400
400
#58AEC5
oklch(70.6% 0.089 217.6)
-
Step 500
500 (this color)
#099EBB
oklch(64.5% 0.114 217.2)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#012C35
oklch(27% 0.047 215.7)
#099EBB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8B99BD | 0.098 |
| Deuteranopia (no green cones) | #768ABB | 0.088 |
| Tritanopia (no blue cones) | #00A8A7 | 0.049 |
| Achromatopsia (no color) | #909090 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #099EBB
#099EBB
oklch(64.5% 0.114 217.2)
- #C9735A
#C9735A
oklch(64.5% 0.115 37)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #099EBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.054
- Blue NCS #118AB2 ΔE 0.057
- Cadet Blue #5F9EA0 ΔE 0.058
- Teal Green #0A9396 ΔE 0.058
- Sea #3C9992 ΔE 0.060
- Persian Green #2A9D8F ΔE 0.066
- Blue Green #0F9B8E ΔE 0.068
- Teal Blue #01889F ΔE 0.070
Use #099EBB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.