#28798B
Closest named color: Ocean (#017B92). oklch(53.6% 0.081 215.6), rgb(40, 121, 139).
Aa
White text reads best on this color (5.00:1).
About this color
#28798B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.081 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.015 away. White text reads best on it, at 5.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #28798B |
| RGB | rgb(40, 121, 139) |
| HSL | hsl(191, 55%, 35%) |
| OKLCH | oklch(53.6% 0.081 215.6) |
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 #28798B | 5.00:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #28798B | 4.19:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #28798B text on white | 5.00:1 | AA | Lc 74.3 | Content text, not long reading |
| #28798B text on black | 4.19:1 | AA large text | Lc -27.4 | Dividers and decoration only |
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
#CBDDE2
oklch(88.6% 0.021 216.2)
-
Step 300
300
#A7C7D0
oklch(80.9% 0.037 216.6)
-
Step 400
400
#76AAB8
oklch(70.6% 0.058 216.4)
-
Step 500
500
#5095A6
oklch(63.1% 0.074 215.7)
-
Step 600
600 (this color)
#28798B
oklch(53.6% 0.081 215.6)
-
Step 700
700
#216B7C
oklch(49.1% 0.075 216.4)
-
Step 800
800
#1E5765
oklch(42.6% 0.062 217.1)
-
Step 900
900
#1F4852
oklch(37.7% 0.049 216)
-
Step 950
950
#132A30
oklch(26.9% 0.031 216.7)
#28798B 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) | #6D758C | 0.072 |
| Deuteranopia (no green cones) | #5F6B8B | 0.065 |
| Tritanopia (no blue cones) | #00807F | 0.036 |
| Achromatopsia (no color) | #6F6F6F | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28798B
#28798B
oklch(53.6% 0.081 215.6)
- #965C4C
#965C4C
oklch(53.6% 0.081 36.2)
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 #28798B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.015
- Deep Aqua #08787F ΔE 0.025
- Sea Blue #047495 ΔE 0.029
- Teal #008080 ΔE 0.034
- Bluegreen #017A79 ΔE 0.035
- Metallic Blue #4F738E ΔE 0.038
- Cerulean #457B9D ΔE 0.039
- Deep Turquoise #017374 ΔE 0.043
Use #28798B 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.