#437781
Closest named color: Metallic Blue (#4F738E). oklch(53.7% 0.058 211.3), rgb(67, 119, 129).
Aa
White text reads best on this color (5.00:1).
About this color
#437781 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.058 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.031 away. White text reads best on it, at 5.00:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.19:1 |
| White text | 5.00:1 |
Values
| HEX | #437781 |
| RGB | rgb(67, 119, 129) |
| HSL | hsl(190, 32%, 38%) |
| OKLCH | oklch(53.7% 0.058 211.3) |
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 #437781 | 5.00:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #437781 | 4.19:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #437781 text on white | 5.00:1 | AA | Lc 74.5 | Content text, not long reading |
| #437781 text on black | 4.19:1 | AA large text | Lc -27.2 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CFDCDE
oklch(88.5% 0.014 207.9)
-
Step 300
300
#AEC5CA
oklch(80.8% 0.026 212.3)
-
Step 400
400
#83A8AF
oklch(70.7% 0.042 210.4)
-
Step 500
500
#63929C
oklch(63% 0.053 212.4)
-
Step 600
600 (this color)
#437781
oklch(53.7% 0.058 211.3)
-
Step 700
700
#3A6972
oklch(49.1% 0.053 211.3)
-
Step 800
800
#30565D
oklch(42.8% 0.045 210.6)
-
Step 900
900
#2B474C
oklch(37.8% 0.035 210)
-
Step 950
950
#1A292D
oklch(26.9% 0.022 216.2)
#437781 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) | #6F7482 | 0.055 |
| Deuteranopia (no green cones) | #656C81 | 0.050 |
| Tritanopia (no blue cones) | #237B7A | 0.031 |
| Achromatopsia (no color) | #6F6F6F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437781
#437781
oklch(53.7% 0.058 211.3)
- #8C6159
#8C6159
oklch(53.6% 0.058 30.8)
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 #437781, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.031
- Deep Aqua #08787F ΔE 0.035
- Ocean #017B92 ΔE 0.039
- Bluegreen #017A79 ΔE 0.041
- Teal #008080 ΔE 0.041
- Cerulean #457B9D ΔE 0.044
- Stormy Blue #507B9C ΔE 0.046
- Dull Blue #49759C ΔE 0.047
Use #437781 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.