#42919B
Closest named color: Teal Green (#0A9396). oklch(61.1% 0.078 206.5), rgb(66, 145, 155).
Aa
Black text reads best on this color (5.75:1).
About this color
#42919B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 61%, its chroma 0.078 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.028 away. Black text reads best on it, at 5.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #42919B |
| RGB | rgb(66, 145, 155) |
| HSL | hsl(187, 40%, 43%) |
| OKLCH | oklch(61.1% 0.078 206.5) |
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 #42919B | 3.64:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #42919B | 5.75:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #42919B text on white | 3.64:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #42919B text on black | 5.75:1 | AA | Lc -37.8 | 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
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A5C8CD
oklch(80.9% 0.038 207)
-
Step 400
400
#72ACB4
oklch(70.7% 0.061 206.8)
-
Step 500
500 (this color)
#42919B
oklch(61.1% 0.078 206.5)
-
Step 600
600
#23818C
oklch(55.5% 0.085 206.6)
-
Step 700
700
#136D77
oklch(49.1% 0.079 206.6)
-
Step 800
800
#155961
oklch(42.7% 0.066 206.7)
-
Step 900
900
#1A494F
oklch(37.6% 0.051 206.8)
-
Step 950
950
#112B2E
oklch(27% 0.032 205.4)
#42919B 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) | #868C9C | 0.076 |
| Deuteranopia (no green cones) | #78819B | 0.071 |
| Tritanopia (no blue cones) | #009794 | 0.035 |
| Achromatopsia (no color) | #868686 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42919B
#42919B
oklch(61.1% 0.078 206.5)
- #AE716A
#AE716A
oklch(61.1% 0.079 26.8)
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 #42919B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.028
- Sea #3C9992 ΔE 0.031
- Dusty Teal #4C9085 ΔE 0.033
- Teal Blue #01889F ΔE 0.044
- Dark Cyan #008B8B ΔE 0.044
- Blue Green #0F9B8E ΔE 0.047
- Persian Green #2A9D8F ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.049
Use #42919B 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.