#157AA7
Closest named color: Nice Blue (#107AB0). oklch(54.8% 0.11 234.6), rgb(21, 122, 167).
Aa
White text reads best on this color (4.80:1).
About this color
#157AA7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.110 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.014 away. White text reads best on it, at 4.80:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.37:1 |
| White text | 4.80:1 |
Values
| HEX | #157AA7 |
| RGB | rgb(21, 122, 167) |
| HSL | hsl(198, 78%, 37%) |
| OKLCH | oklch(54.8% 0.11 234.6) |
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 #157AA7 | 4.80:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #157AA7 | 4.37:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #157AA7 text on white | 4.80:1 | AA | Lc 72.9 | Content text, not long reading |
| #157AA7 text on black | 4.37:1 | AA large text | Lc -28.8 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE9
oklch(88.6% 0.027 234)
-
Step 300
300
#A2C6DC
oklch(80.8% 0.05 235.1)
-
Step 400
400
#6EA9CB
oklch(70.7% 0.079 234.8)
-
Step 500
500
#4393BD
oklch(63.1% 0.1 234.4)
-
Step 600
600 (this color)
#157AA7
oklch(54.8% 0.11 234.6)
-
Step 700
700
#066992
oklch(49.2% 0.102 234.7)
-
Step 800
800
#0E5676
oklch(42.8% 0.084 234.1)
-
Step 900
900
#17475F
oklch(37.7% 0.065 234.2)
-
Step 950
950
#0F2A38
oklch(27.1% 0.042 233.9)
#157AA7 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) | #6479A9 | 0.067 |
| Deuteranopia (no green cones) | #516CA6 | 0.056 |
| Tritanopia (no blue cones) | #008689 | 0.068 |
| Achromatopsia (no color) | #727272 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #157AA7
#157AA7
oklch(54.8% 0.11 234.6)
- #A15D2B
#A15D2B
oklch(54.7% 0.11 54.2)
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 #157AA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.014
- Flat Blue #3C73A8 ΔE 0.029
- Ocean Blue #03719C ΔE 0.031
- Muted Blue #3B719F ΔE 0.031
- Sea Blue #047495 ΔE 0.032
- Cerulean #457B9D ΔE 0.034
- Ocean #017B92 ΔE 0.036
- Dull Blue #49759C ΔE 0.037
Use #157AA7 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.