#45737A
Closest named color: Metallic Blue (#4F738E). oklch(52.5% 0.052 208), rgb(69, 115, 122).
Aa
White text reads best on this color (5.26:1).
About this color
#45737A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.052 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.036 away. White text reads best on it, at 5.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #45737A |
| RGB | rgb(69, 115, 122) |
| HSL | hsl(188, 28%, 37%) |
| OKLCH | oklch(52.5% 0.052 208) |
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 #45737A | 5.26:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #45737A | 3.98:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #45737A text on white | 5.26:1 | AA | Lc 76.1 | Fine for body text |
| #45737A text on black | 3.98:1 | AA large text | Lc -25.6 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#B0C5C8
oklch(80.8% 0.023 207.1)
-
Step 400
400
#86A7AD
oklch(70.6% 0.037 209.9)
-
Step 500
500
#679298
oklch(63.1% 0.048 206.9)
-
Step 600
600 (this color)
#45737A
oklch(52.5% 0.052 208)
-
Step 700
700
#3F696F
oklch(49.2% 0.048 207.3)
-
Step 800
800
#34555A
oklch(42.6% 0.039 207.9)
-
Step 900
900
#2E464A
oklch(37.6% 0.03 209)
-
Step 950
950
#1B292B
oklch(26.9% 0.019 207.1)
#45737A 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) | #6C707A | 0.050 |
| Deuteranopia (no green cones) | #63697A | 0.046 |
| Tritanopia (no blue cones) | #2D7775 | 0.027 |
| Achromatopsia (no color) | #6C6C6C | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45737A
#45737A
oklch(52.5% 0.052 208)
- #865F5A
#865F5A
oklch(52.5% 0.052 27.2)
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 #45737A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.036
- Deep Aqua #08787F ΔE 0.036
- Slate #516572 ΔE 0.041
- Bluegreen #017A79 ΔE 0.042
- Deep Turquoise #017374 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.045
- Ocean #017B92 ΔE 0.047
- Teal #008080 ΔE 0.048
Use #45737A 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.