#437B63
Closest named color: Bluegreen (#017A79). oklch(53.7% 0.071 164.4), rgb(67, 123, 99).
Aa
White text reads best on this color (4.93:1).
About this color
#437B63 is a medium-dark, moderately saturated green. In OKLCH its lightness is 54%, its chroma 0.071 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.046 away. White text reads best on it, at 4.93:1.
| Hue family | Greens |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #437B63 |
| RGB | rgb(67, 123, 99) |
| HSL | hsl(154, 29%, 37%) |
| OKLCH | oklch(53.7% 0.071 164.4) |
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 #437B63 | 4.93:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #437B63 | 4.25:1 | AA large text | Lc 30.0 | Non-text elements, placeholder text |
| #437B63 text on white | 4.93:1 | AA | Lc 74.1 | Content text, not long reading |
| #437B63 text on black | 4.25:1 | AA large text | Lc -27.6 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#CFDDD6
oklch(88.5% 0.018 164.6)
-
Step 300
300
#AFC8BB
oklch(81% 0.033 163)
-
Step 400
400
#83AB98
oklch(70.6% 0.052 164.3)
-
Step 500
500
#63967F
oklch(63% 0.065 164.5)
-
Step 600
600 (this color)
#437B63
oklch(53.7% 0.071 164.4)
-
Step 700
700
#3A6D57
oklch(49.2% 0.066 164.2)
-
Step 800
800
#305947
oklch(42.8% 0.056 164)
-
Step 900
900
#2B493C
oklch(37.7% 0.043 165)
-
Step 950
950
#1A2B23
oklch(27.1% 0.027 163.6)
#437B63 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) | #797462 | 0.070 |
| Deuteranopia (no green cones) | #706E64 | 0.067 |
| Tritanopia (no blue cones) | #337B74 | 0.028 |
| Achromatopsia (no color) | #707070 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437B63
#437B63
oklch(53.7% 0.071 164.4)
- #8C5D78
#8C5D78
oklch(53.8% 0.072 344.4)
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 #437B63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.046
- Dark Sage #598556 ΔE 0.048
- Teal #008080 ΔE 0.048
- Dark Aquamarine #017371 ΔE 0.054
- Deep Aqua #08787F ΔE 0.055
- Deep Turquoise #017374 ΔE 0.056
- Sea Green #2E8B57 ΔE 0.059
- Military Green #667C3E ΔE 0.060
Use #437B63 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.