#457E90
Closest named color: Cerulean (#457B9D). oklch(56.1% 0.066 220.6), rgb(69, 126, 144).
Aa
Black text reads best on this color (4.64:1).
About this color
#457E90 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 56%, its chroma 0.066 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.025 away. Black text reads best on it, at 4.64:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #457E90 |
| RGB | rgb(69, 126, 144) |
| HSL | hsl(194, 35%, 42%) |
| OKLCH | oklch(56.1% 0.066 220.6) |
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 #457E90 | 4.52:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #457E90 | 4.64:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #457E90 text on white | 4.52:1 | AA | Lc 71.3 | Content text, not long reading |
| #457E90 text on black | 4.64:1 | AA | Lc -30.4 | Non-text elements, placeholder text |
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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ADC5CE
oklch(80.8% 0.029 222.4)
-
Step 400
400
#80A8B5
oklch(70.7% 0.047 219.8)
-
Step 500
500
#5F92A3
oklch(63% 0.06 221)
-
Step 600
600 (this color)
#457E90
oklch(56.1% 0.066 220.6)
-
Step 700
700
#356979
oklch(49.2% 0.061 220.3)
-
Step 800
800
#2C5662
oklch(42.8% 0.051 218.6)
-
Step 900
900
#284750
oklch(37.8% 0.04 218.4)
-
Step 950
950
#18292F
oklch(26.9% 0.025 222.2)
#457E90 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) | #737B91 | 0.055 |
| Deuteranopia (no green cones) | #687390 | 0.049 |
| Tritanopia (no blue cones) | #178484 | 0.042 |
| Achromatopsia (no color) | #767676 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #457E90
#457E90
oklch(56.1% 0.066 220.6)
- #976857
#976857
oklch(56.2% 0.066 40.7)
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 #457E90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.025
- Stormy Blue #507B9C ΔE 0.026
- Metallic Blue #4F738E ΔE 0.032
- Grey Blue #647D8E ΔE 0.034
- Dull Blue #49759C ΔE 0.037
- Ocean #017B92 ΔE 0.038
- Teal Blue #01889F ΔE 0.040
- Battleship Grey #6B7C85 ΔE 0.045
Use #457E90 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.