#125BA1
Closest named color: Dusk Blue (#26538D). oklch(46.8% 0.132 252.5), rgb(18, 91, 161).
Aa
White text reads best on this color (6.91:1).
About this color
#125BA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.132 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.036 away. White text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #125BA1 |
| RGB | rgb(18, 91, 161) |
| HSL | hsl(209, 80%, 35%) |
| OKLCH | oklch(46.8% 0.132 252.5) |
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 #125BA1 | 6.91:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #125BA1 | 3.03:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #125BA1 text on white | 6.91:1 | AA | Lc 83.4 | Fine for body text |
| #125BA1 text on black | 3.03:1 | AA large text | Lc -18.5 | 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 700.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C9DBF1
oklch(88.5% 0.036 253.5)
-
Step 300
300
#A4C4E9
oklch(80.9% 0.063 252.3)
-
Step 400
400
#71A4DF
oklch(70.6% 0.103 252.8)
-
Step 500
500
#4A8CD6
oklch(63% 0.131 252.9)
-
Step 600
600
#2975C3
oklch(55.6% 0.142 252.4)
-
Step 700
700 (this color)
#125BA1
oklch(46.8% 0.132 252.5)
-
Step 800
800
#1A5088
oklch(42.7% 0.108 252.6)
-
Step 900
900
#1C436D
oklch(37.7% 0.085 252.5)
-
Step 950
950
#112740
oklch(26.9% 0.055 253.1)
#125BA1 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) | #3761A4 | 0.035 |
| Deuteranopia (no green cones) | #1B54A0 | 0.019 |
| Tritanopia (no blue cones) | #006C76 | 0.097 |
| Achromatopsia (no color) | #5A5A5A | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #125BA1
#125BA1
oklch(46.8% 0.132 252.5)
- #7C5000
#7C5000
oklch(46.9% 0.1 72.9)
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 #125BA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.043
- Peacock Blue #016795 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.052
- Dusky Blue #475F94 ΔE 0.053
- Light Navy #155084 ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.054
Use #125BA1 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.