#2E738E
Closest named color: Sea Blue (#047495). oklch(52.4% 0.08 227.3), rgb(46, 115, 142).
Aa
White text reads best on this color (5.30:1).
About this color
#2E738E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.080 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.019 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #2E738E |
| RGB | rgb(46, 115, 142) |
| HSL | hsl(197, 51%, 37%) |
| OKLCH | oklch(52.4% 0.08 227.3) |
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 #2E738E | 5.30:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #2E738E | 3.95:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #2E738E text on white | 5.30:1 | AA | Lc 76.1 | Fine for body text |
| #2E738E text on black | 3.95:1 | AA large text | Lc -25.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D3
oklch(80.9% 0.036 226.7)
-
Step 400
400
#7AA8BD
oklch(70.6% 0.058 227.9)
-
Step 500
500
#5693AC
oklch(63.2% 0.074 226.4)
-
Step 600
600 (this color)
#2E738E
oklch(52.4% 0.08 227.3)
-
Step 700
700
#2A6982
oklch(49.1% 0.075 227.5)
-
Step 800
800
#245669
oklch(42.8% 0.062 226)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950
#152932
oklch(26.8% 0.031 228.6)
#2E738E 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) | #65718F | 0.060 |
| Deuteranopia (no green cones) | #57678E | 0.052 |
| Tritanopia (no blue cones) | #007B7C | 0.047 |
| Achromatopsia (no color) | #6B6B6B | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E738E
#2E738E
oklch(52.4% 0.08 227.3)
- #905B40
#905B40
oklch(52.4% 0.081 47.4)
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 #2E738E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.019
- Ocean #017B92 ΔE 0.026
- Ocean Blue #03719C ΔE 0.030
- Metallic Blue #4F738E ΔE 0.032
- Muted Blue #3B719F ΔE 0.032
- Dull Blue #49759C ΔE 0.036
- Deep Aqua #08787F ΔE 0.037
- Cerulean #457B9D ΔE 0.039
Use #2E738E 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.