#157EA7
Closest named color: Nice Blue (#107AB0). oklch(55.7% 0.107 231.3), rgb(21, 126, 167).
Aa
White text reads best on this color (4.59:1).
About this color
#157EA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.107 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.021 away. White text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.57:1 |
| White text | 4.59:1 |
Values
| HEX | #157EA7 |
| RGB | rgb(21, 126, 167) |
| HSL | hsl(197, 78%, 37%) |
| OKLCH | oklch(55.7% 0.107 231.3) |
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 #157EA7 | 4.59:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #157EA7 | 4.57:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #157EA7 text on white | 4.59:1 | AA | Lc 71.4 | Content text, not long reading |
| #157EA7 text on black | 4.57:1 | AA | Lc -30.3 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A2C7DB
oklch(80.9% 0.049 231.7)
-
Step 400
400
#6DAAC8
oklch(70.8% 0.077 230.6)
-
Step 500
500
#4094BA
oklch(63.1% 0.099 230.8)
-
Step 600
600 (this color)
#157EA7
oklch(55.7% 0.107 231.3)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#0A5674
oklch(42.6% 0.083 231.8)
-
Step 900
900
#15475E
oklch(37.6% 0.065 232.4)
-
Step 950
950
#0E2A37
oklch(27% 0.041 231.2)
#157EA7 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) | #697CA9 | 0.071 |
| Deuteranopia (no green cones) | #5770A6 | 0.060 |
| Tritanopia (no blue cones) | #00898C | 0.062 |
| Achromatopsia (no color) | #757575 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #157EA7
#157EA7
oklch(55.7% 0.107 231.3)
- #A56034
#A56034
oklch(55.9% 0.107 51.4)
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 #157EA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.021
- Cerulean #457B9D ΔE 0.031
- Ocean #017B92 ΔE 0.034
- Teal Blue #01889F ΔE 0.036
- Blue NCS #118AB2 ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.037
- Sea Blue #047495 ΔE 0.038
- Muted Blue #3B719F ΔE 0.039
Use #157EA7 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.