#3157CD
Closest named color: Warm Blue (#4B57DB). oklch(50.2% 0.188 266.1), rgb(49, 87, 205).
Aa
White text reads best on this color (6.22:1).
About this color
#3157CD is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.188 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.037 away. White text reads best on it, at 6.22:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.37:1 |
| White text | 6.22:1 |
Values
| HEX | #3157CD |
| RGB | rgb(49, 87, 205) |
| HSL | hsl(225, 61%, 50%) |
| OKLCH | oklch(50.2% 0.188 266.1) |
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 #3157CD | 6.22:1 | AA | Lc -85.6 | Fine for body text |
| Black text on #3157CD | 3.37:1 | AA large text | Lc 23.6 | Dividers and decoration only |
| #3157CD text on white | 6.22:1 | AA | Lc 80.5 | Fine for body text |
| #3157CD text on black | 3.37:1 | AA large text | Lc -21.4 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FC
oklch(88.5% 0.051 267)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400
#769CFB
oklch(70.7% 0.146 266.3)
-
Step 500
500
#5480F8
oklch(63% 0.186 266.1)
-
Step 600
600
#3B66E7
oklch(55.6% 0.201 266)
-
Step 700
700 (this color)
#3157CD
oklch(50.2% 0.188 266.1)
-
Step 800
800
#2745A3
oklch(42.7% 0.156 266.3)
-
Step 900
900
#233B81
oklch(37.6% 0.122 266.3)
-
Step 950
950
#15234B
oklch(26.9% 0.076 266.7)
#3157CD 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) | #0068D1 | 0.043 |
| Deuteranopia (no green cones) | #005ACB | 0.025 |
| Tritanopia (no blue cones) | #007589 | 0.149 |
| Achromatopsia (no color) | #616161 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3157CD
#3157CD
oklch(50.2% 0.188 266.1)
- #7E5F00
#7E5F00
oklch(50.3% 0.103 86.3)
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 #3157CD, closest first.
No curated palette has a color within ΔE 0.04 of #3157CD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.037
- Azul #1D5DEC ΔE 0.050
- Blue Blue #2242C7 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.058
- Neon Blue #4361EE ΔE 0.061
- Iris #6258C4 ΔE 0.064
- Majorelle Blue #3F37C9 ΔE 0.067
- Blue With A Hint Of Purple #533CC6 ΔE 0.067
Use #3157CD 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.