#437887
Closest named color: Metallic Blue (#4F738E). oklch(54.2% 0.061 218.2), rgb(67, 120, 135).
Aa
White text reads best on this color (4.91:1).
About this color
#437887 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 54%, its chroma 0.061 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.025 away. White text reads best on it, at 4.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #437887 |
| RGB | rgb(67, 120, 135) |
| HSL | hsl(193, 34%, 40%) |
| OKLCH | oklch(54.2% 0.061 218.2) |
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 #437887 | 4.91:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #437887 | 4.27:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #437887 text on white | 4.91:1 | AA | Lc 73.9 | Content text, not long reading |
| #437887 text on black | 4.27:1 | AA large text | Lc -27.8 | 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
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AEC5CD
oklch(80.9% 0.027 220.7)
-
Step 400
400
#82A8B3
oklch(70.7% 0.044 217.4)
-
Step 500
500
#6292A0
oklch(63.1% 0.056 218)
-
Step 600
600 (this color)
#437887
oklch(54.2% 0.061 218.2)
-
Step 700
700
#386976
oklch(49.2% 0.057 217)
-
Step 800
800
#2F5560
oklch(42.6% 0.047 218.5)
-
Step 900
900
#2A464F
oklch(37.6% 0.037 220.3)
-
Step 950
950
#19292E
oklch(26.9% 0.023 219.4)
#437887 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) | #6E7588 | 0.053 |
| Deuteranopia (no green cones) | #646D87 | 0.048 |
| Tritanopia (no blue cones) | #1E7D7D | 0.037 |
| Achromatopsia (no color) | #717171 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437887
#437887
oklch(54.2% 0.061 218.2)
- #8F6355
#8F6355
oklch(54.2% 0.062 38.4)
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 #437887, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.025
- Cerulean #457B9D ΔE 0.034
- Ocean #017B92 ΔE 0.035
- Stormy Blue #507B9C ΔE 0.037
- Dull Blue #49759C ΔE 0.038
- Deep Aqua #08787F ΔE 0.039
- Teal #008080 ΔE 0.044
- Grey Blue #647D8E ΔE 0.044
Use #437887 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.