#437A63
Closest named color: Bluegreen (#017A79). oklch(53.4% 0.07 165.1), rgb(67, 122, 99).
Aa
White text reads best on this color (4.99:1).
About this color
#437A63 is a medium-dark, muted green. In OKLCH its lightness is 53%, its chroma 0.070 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.045 away. White text reads best on it, at 4.99:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.070) |
| Temperature | in between |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #437A63 |
| RGB | rgb(67, 122, 99) |
| HSL | hsl(155, 29%, 37%) |
| OKLCH | oklch(53.4% 0.07 165.1) |
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 #437A63 | 4.99:1 | AA | Lc -79.8 | Fine for body text |
| Black text on #437A63 | 4.20:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #437A63 text on white | 4.99:1 | AA | Lc 74.4 | Content text, not long reading |
| #437A63 text on black | 4.20:1 | AA large text | Lc -27.3 | 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
#AFC7BC
oklch(80.8% 0.03 166.3)
-
Step 400
400
#84AB99
oklch(70.7% 0.05 165.1)
-
Step 500
500
#649680
oklch(63.1% 0.063 165.1)
-
Step 600
600 (this color)
#437A63
oklch(53.4% 0.07 165.1)
-
Step 700
700
#3A6C58
oklch(49% 0.064 166)
-
Step 800
800
#315848
oklch(42.6% 0.052 165.8)
-
Step 900
900
#2B493C
oklch(37.7% 0.043 165)
-
Step 950
950
#1A2B23
oklch(27.1% 0.027 163.6)
#437A63 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) | #787362 | 0.069 |
| Deuteranopia (no green cones) | #6F6D64 | 0.066 |
| Tritanopia (no blue cones) | #337A73 | 0.026 |
| Achromatopsia (no color) | #6F6F6F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437A63
#437A63
oklch(53.4% 0.07 165.1)
- #8A5D76
#8A5D76
oklch(53.5% 0.068 345.2)
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 #437A63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.045
- Teal #008080 ΔE 0.048
- Dark Sage #598556 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.052
- Deep Turquoise #017374 ΔE 0.054
- Deep Aqua #08787F ΔE 0.054
- Military Green #667C3E ΔE 0.061
- Sea Green #2E8B57 ΔE 0.062
Use #437A63 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.