#437389
Closest named color: Metallic Blue (#4F738E). oklch(53% 0.063 229.2), rgb(67, 115, 137).
Aa
White text reads best on this color (5.18:1).
About this color
#437389 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.063 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.016 away. White text reads best on it, at 5.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #437389 |
| RGB | rgb(67, 115, 137) |
| HSL | hsl(199, 34%, 40%) |
| OKLCH | oklch(53% 0.063 229.2) |
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 #437389 | 5.18:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #437389 | 4.05:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #437389 text on white | 5.18:1 | AA | Lc 75.6 | Fine for body text |
| #437389 text on black | 4.05:1 | AA large text | Lc -26.2 | 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
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC5CF
oklch(81% 0.028 226.9)
-
Step 400
400
#84A7B7
oklch(70.8% 0.045 227.5)
-
Step 500
500
#6491A6
oklch(63.2% 0.058 228.8)
-
Step 600
600 (this color)
#437389
oklch(53% 0.063 229.2)
-
Step 700
700
#3B677B
oklch(49% 0.058 229)
-
Step 800
800
#315464
oklch(42.6% 0.048 228.9)
-
Step 900
900
#2C4652
oklch(37.8% 0.038 228.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#437389 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) | #68718A | 0.046 |
| Deuteranopia (no green cones) | #5E6A89 | 0.040 |
| Tritanopia (no blue cones) | #1D797A | 0.045 |
| Achromatopsia (no color) | #6D6D6D | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437389
#437389
oklch(53% 0.063 229.2)
- #8A614B
#8A614B
oklch(53% 0.063 49.1)
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 #437389, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.016
- Dull Blue #49759C ΔE 0.031
- Cerulean #457B9D ΔE 0.035
- Ocean #017B92 ΔE 0.038
- Muted Blue #3B719F ΔE 0.038
- Sea Blue #047495 ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
- Deep Aqua #08787F ΔE 0.043
Use #437389 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.