#437584
Closest named color: Metallic Blue (#4F738E). oklch(53.3% 0.059 219.2), rgb(67, 117, 132).
Aa
White text reads best on this color (5.10:1).
About this color
#437584 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.059 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.024 away. White text reads best on it, at 5.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.11:1 |
| White text | 5.10:1 |
Values
| HEX | #437584 |
| RGB | rgb(67, 117, 132) |
| HSL | hsl(194, 33%, 39%) |
| OKLCH | oklch(53.3% 0.059 219.2) |
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 #437584 | 5.10:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #437584 | 4.11:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #437584 text on white | 5.10:1 | AA | Lc 75.1 | Fine for body text |
| #437584 text on black | 4.11:1 | AA large text | Lc -26.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AFC5CC
oklch(80.9% 0.026 218.9)
-
Step 400
400
#84A7B3
oklch(70.6% 0.042 220.8)
-
Step 500
500
#6492A0
oklch(63.2% 0.054 218.8)
-
Step 600
600 (this color)
#437584
oklch(53.3% 0.059 219.2)
-
Step 700
700
#3B6876
oklch(49.1% 0.054 220)
-
Step 800
800
#315560
oklch(42.7% 0.045 219.5)
-
Step 900
900
#2C464E
oklch(37.7% 0.034 219.2)
-
Step 950
950
#1A292E
oklch(27% 0.022 220.6)
#437584 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) | #6C7285 | 0.051 |
| Deuteranopia (no green cones) | #626B84 | 0.045 |
| Tritanopia (no blue cones) | #217A7A | 0.036 |
| Achromatopsia (no color) | #6E6E6E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #437584
#437584
oklch(53.3% 0.059 219.2)
- #8B6153
#8B6153
oklch(53.3% 0.059 39.2)
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 #437584, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.024
- Deep Aqua #08787F ΔE 0.037
- Ocean #017B92 ΔE 0.037
- Cerulean #457B9D ΔE 0.040
- Dull Blue #49759C ΔE 0.040
- Stormy Blue #507B9C ΔE 0.043
- Sea Blue #047495 ΔE 0.043
- Bluegreen #017A79 ΔE 0.045
Use #437584 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.