#437691
Closest named color: Metallic Blue (#4F738E). oklch(54.1% 0.069 233.2), rgb(67, 118, 145).
Aa
White text reads best on this color (4.95:1).
About this color
#437691 is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.069 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.014 away. White text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #437691 |
| RGB | rgb(67, 118, 145) |
| HSL | hsl(201, 37%, 42%) |
| OKLCH | oklch(54.1% 0.069 233.2) |
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 #437691 | 4.95:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #437691 | 4.23:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #437691 text on white | 4.95:1 | AA | Lc 74.2 | Content text, not long reading |
| #437691 text on black | 4.23:1 | AA large text | Lc -27.5 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AEC5D2
oklch(81% 0.031 232.5)
-
Step 400
400
#82A6BB
oklch(70.6% 0.05 234)
-
Step 500
500
#6290AA
oklch(63% 0.063 233.9)
-
Step 600
600 (this color)
#437691
oklch(54.1% 0.069 233.2)
-
Step 700
700
#386780
oklch(49.1% 0.065 233.5)
-
Step 800
800
#2F5468
oklch(42.7% 0.054 233.6)
-
Step 900
900
#2A4554
oklch(37.5% 0.042 233.8)
-
Step 950
950
#192931
oklch(27% 0.026 230.6)
#437691 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) | #697592 | 0.046 |
| Deuteranopia (no green cones) | #5E6C91 | 0.041 |
| Tritanopia (no blue cones) | #127D7F | 0.052 |
| Achromatopsia (no color) | #707070 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437691
#437691
oklch(54.1% 0.069 233.2)
- #8F6448
#8F6448
oklch(54.1% 0.069 53.8)
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 #437691, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.014
- Dull Blue #49759C ΔE 0.020
- Cerulean #457B9D ΔE 0.021
- Stormy Blue #507B9C ΔE 0.026
- Muted Blue #3B719F ΔE 0.031
- Ocean #017B92 ΔE 0.035
- Sea Blue #047495 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.040
Use #437691 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.