#30878B
Closest named color: Dark Cyan (#008B8B). oklch(57.4% 0.081 199.5), rgb(48, 135, 139).
Aa
Black text reads best on this color (4.96:1).
About this color
#30878B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.081 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.019 away. Black text reads best on it, at 4.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 4.96:1 |
| White text | 4.23:1 |
Values
| HEX | #30878B |
| RGB | rgb(48, 135, 139) |
| HSL | hsl(183, 49%, 37%) |
| OKLCH | oklch(57.4% 0.081 199.5) |
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 #30878B | 4.23:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #30878B | 4.96:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #30878B text on white | 4.23:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #30878B text on black | 4.96:1 | AA | Lc -32.7 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADDDE
oklch(88.4% 0.02 200.6)
-
Step 300
300
#A6C8CA
oklch(80.9% 0.036 200.9)
-
Step 400
400
#74ACAF
oklch(70.7% 0.059 200.2)
-
Step 500
500
#4C979B
oklch(63% 0.075 200)
-
Step 600
600 (this color)
#30878B
oklch(57.4% 0.081 199.5)
-
Step 700
700
#1A6D71
oklch(49% 0.075 199.8)
-
Step 800
800
#19595C
oklch(42.6% 0.063 199.6)
-
Step 900
900
#1D494C
oklch(37.6% 0.048 201.4)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#30878B 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) | #7D818B | 0.082 |
| Deuteranopia (no green cones) | #70778B | 0.077 |
| Tritanopia (no blue cones) | #008C88 | 0.023 |
| Achromatopsia (no color) | #7B7B7B | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30878B
#30878B
oklch(57.4% 0.081 199.5)
- #A36565
#A36565
oklch(57.5% 0.08 19.8)
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 #30878B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.019
- Teal Blue #01889F ΔE 0.032
- Teal #008080 ΔE 0.034
- Teal Green #0A9396 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.040
- Ocean #017B92 ΔE 0.047
- Bluegreen #017A79 ΔE 0.051
- Deep Aqua #08787F ΔE 0.052
Use #30878B 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.