#278596
Closest named color: Teal Blue (#01889F). oklch(57.1% 0.088 212.4), rgb(39, 133, 150).
Aa
Black text reads best on this color (4.88:1).
About this color
#278596 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 57%, its chroma 0.088 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.016 away. Black text reads best on it, at 4.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 4.88:1 |
| White text | 4.30:1 |
Values
| HEX | #278596 |
| RGB | rgb(39, 133, 150) |
| HSL | hsl(189, 59%, 37%) |
| OKLCH | oklch(57.1% 0.088 212.4) |
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 #278596 | 4.30:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #278596 | 4.88:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #278596 text on white | 4.30:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #278596 text on black | 4.88:1 | AA | Lc -32.2 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A4C8D0
oklch(80.9% 0.04 212.7)
-
Step 400
400
#71ABB8
oklch(70.6% 0.063 213.3)
-
Step 500
500
#4796A6
oklch(63% 0.081 212.8)
-
Step 600
600 (this color)
#278596
oklch(57.1% 0.088 212.4)
-
Step 700
700
#106D7C
oklch(49.2% 0.082 212)
-
Step 800
800
#135965
oklch(42.8% 0.068 212)
-
Step 900
900
#194952
oklch(37.7% 0.053 212.1)
-
Step 950
950
#112B30
oklch(27.1% 0.033 211.7)
#278596 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) | #788097 | 0.081 |
| Deuteranopia (no green cones) | #687596 | 0.073 |
| Tritanopia (no blue cones) | #008C8A | 0.034 |
| Achromatopsia (no color) | #7A7A7A | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278596
#278596
oklch(57.1% 0.088 212.4)
- #A56456
#A56456
oklch(57.2% 0.088 32.9)
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 #278596, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.016
- Dark Cyan #008B8B ΔE 0.031
- Ocean #017B92 ΔE 0.035
- Teal #008080 ΔE 0.039
- Cerulean #457B9D ΔE 0.039
- Blue NCS #118AB2 ΔE 0.042
- Teal Green #0A9396 ΔE 0.042
- Stormy Blue #507B9C ΔE 0.045
Use #278596 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.