#287C7E
Closest named color: Teal (#008080). oklch(53.8% 0.078 197.4), rgb(40, 124, 126).
Aa
White text reads best on this color (4.91:1).
About this color
#287C7E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.078 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.016 away. White text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #287C7E |
| RGB | rgb(40, 124, 126) |
| HSL | hsl(181, 52%, 33%) |
| OKLCH | oklch(53.8% 0.078 197.4) |
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 #287C7E | 4.91:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #287C7E | 4.27:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #287C7E text on white | 4.91:1 | AA | Lc 73.7 | Content text, not long reading |
| #287C7E text on black | 4.27:1 | AA large text | Lc -28.0 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#76ACAD
oklch(70.7% 0.057 197.4)
-
Step 500
500
#4F9799
oklch(63.1% 0.072 197.9)
-
Step 600
600 (this color)
#287C7E
oklch(53.8% 0.078 197.4)
-
Step 700
700
#206D6F
oklch(49% 0.073 197.6)
-
Step 800
800
#1D595A
oklch(42.6% 0.06 196.7)
-
Step 900
900
#1F494A
oklch(37.6% 0.047 197.4)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#287C7E 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) | #73767E | 0.080 |
| Deuteranopia (no green cones) | #666C7F | 0.076 |
| Tritanopia (no blue cones) | #00807C | 0.018 |
| Achromatopsia (no color) | #717171 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287C7E
#287C7E
oklch(53.8% 0.078 197.4)
- #965B5D
#965B5D
oklch(53.8% 0.078 17.8)
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 #287C7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.016
- Bluegreen #017A79 ΔE 0.018
- Deep Aqua #08787F ΔE 0.020
- Ocean #017B92 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.035
- Dark Aquamarine #017371 ΔE 0.037
- Dark Cyan #008B8B ΔE 0.044
- Sea Blue #047495 ΔE 0.052
Use #287C7E 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.