#42949F
Closest named color: Sea (#3C9992). oklch(62% 0.081 207.2), rgb(66, 148, 159).
Aa
Black text reads best on this color (5.96:1).
About this color
#42949F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.081 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.029 away. Black text reads best on it, at 5.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #42949F |
| RGB | rgb(66, 148, 159) |
| HSL | hsl(187, 41%, 44%) |
| OKLCH | oklch(62% 0.081 207.2) |
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 #42949F | 3.51:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #42949F | 5.96:1 | AA | Lc 41.5 | Non-text elements, placeholder text |
| #42949F text on white | 3.51:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #42949F text on black | 5.96:1 | AA | Lc -39.1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A4C8CE
oklch(80.9% 0.039 208.8)
-
Step 400
400
#70ACB5
oklch(70.7% 0.063 207.8)
-
Step 500
500 (this color)
#42949F
oklch(62% 0.081 207.2)
-
Step 600
600
#1E818D
oklch(55.5% 0.087 207.3)
-
Step 700
700
#0B6D78
oklch(49% 0.082 207.4)
-
Step 800
800
#115962
oklch(42.7% 0.068 207.7)
-
Step 900
900
#184950
oklch(37.6% 0.053 208.3)
-
Step 950
950
#102B2F
oklch(27% 0.033 208.2)
#42949F 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) | #898FA0 | 0.079 |
| Deuteranopia (no green cones) | #7A849F | 0.072 |
| Tritanopia (no blue cones) | #009A97 | 0.035 |
| Achromatopsia (no color) | #898989 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42949F
#42949F
oklch(62% 0.081 207.2)
- #B2736C
#B2736C
oklch(62% 0.081 26.6)
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 #42949F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.029
- Teal Green #0A9396 ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.042
- Persian Green #2A9D8F ΔE 0.044
- Blue Green #0F9B8E ΔE 0.046
- Grey Teal #5E9B8A ΔE 0.049
- Teal Blue #01889F ΔE 0.050
Use #42949F 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.