#2F99B4
Closest named color: Blue NCS (#118AB2). oklch(63.5% 0.101 218.8), rgb(47, 153, 180).
Aa
Black text reads best on this color (6.33:1).
About this color
#2F99B4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.101 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.048 away. Black text reads best on it, at 6.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.33:1 |
| White text | 3.31:1 |
Values
| HEX | #2F99B4 |
| RGB | rgb(47, 153, 180) |
| HSL | hsl(192, 59%, 45%) |
| OKLCH | oklch(63.5% 0.101 218.8) |
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 #2F99B4 | 3.31:1 | AA large text | Lc -65.6 | Content text, not long reading |
| Black text on #2F99B4 | 6.33:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #2F99B4 text on white | 3.31:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #2F99B4 text on black | 6.33:1 | AA | Lc -41.5 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C6DEE5
oklch(88.5% 0.027 217.2)
-
Step 300
300
#9EC9D6
oklch(80.9% 0.049 218.2)
-
Step 400
400
#64ADC2
oklch(70.8% 0.079 218.4)
-
Step 500
500 (this color)
#2F99B4
oklch(63.5% 0.101 218.8)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#054A59
oklch(37.8% 0.066 217.8)
-
Step 950
950
#092B34
oklch(27% 0.041 219)
#2F99B4 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) | #8895B5 | 0.085 |
| Deuteranopia (no green cones) | #7687B4 | 0.077 |
| Tritanopia (no blue cones) | #00A2A2 | 0.046 |
| Achromatopsia (no color) | #8D8D8D | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F99B4
#2F99B4
oklch(63.5% 0.101 218.8)
- #BF745C
#BF745C
oklch(63.5% 0.101 38.5)
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 #2F99B4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.048
- Teal Green #0A9396 ΔE 0.050
- Cadet Blue #5F9EA0 ΔE 0.051
- Sea #3C9992 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.058
- Faded Blue #658CBB ΔE 0.058
- Teal Blue #01889F ΔE 0.059
- Off Blue #5684AE ΔE 0.062
Use #2F99B4 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.