#199CC5
Closest named color: Blue NCS (#118AB2). oklch(64.6% 0.119 226), rgb(25, 156, 197).
Aa
Black text reads best on this color (6.60:1).
About this color
#199CC5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.119 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.055 away. Black text reads best on it, at 6.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.60:1 |
| White text | 3.18:1 |
Values
| HEX | #199CC5 |
| RGB | rgb(25, 156, 197) |
| HSL | hsl(194, 77%, 44%) |
| OKLCH | oklch(64.6% 0.119 226) |
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 #199CC5 | 3.18:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #199CC5 | 6.60:1 | AA | Lc 45.6 | Large or bold text, headings |
| #199CC5 text on white | 3.18:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #199CC5 text on black | 6.60:1 | AA | Lc -43.3 | 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
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C4DEEA
oklch(88.5% 0.032 227.3)
-
Step 300
300
#99C9DE
oklch(80.9% 0.058 226.6)
-
Step 400
400
#5AADCD
oklch(70.8% 0.093 225.6)
-
Step 500
500 (this color)
#199CC5
oklch(64.6% 0.119 226)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#032B39
oklch(27% 0.049 226.8)
#199CC5 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) | #8699C7 | 0.089 |
| Deuteranopia (no green cones) | #708AC4 | 0.076 |
| Tritanopia (no blue cones) | #00A8AA | 0.062 |
| Achromatopsia (no color) | #909090 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #199CC5
#199CC5
oklch(64.6% 0.119 226)
- #C9754C
#C9754C
oklch(64.6% 0.12 46)
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 #199CC5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.055
- Faded Blue #658CBB ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.062
- Water Blue #0E87CC ΔE 0.065
- Cool Blue #4984B8 ΔE 0.067
- Dusty Blue #5A86AD ΔE 0.068
- Cadet Blue #5F9EA0 ΔE 0.069
- Off Blue #5684AE ΔE 0.071
Use #199CC5 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.