#1C61BF
Closest named color: Mid Blue (#276AB3). oklch(50.5% 0.162 257.8), rgb(28, 97, 191).
Aa
White text reads best on this color (5.98:1).
About this color
#1C61BF is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.162 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.035 away. White text reads best on it, at 5.98:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.51:1 |
| White text | 5.98:1 |
Values
| HEX | #1C61BF |
| RGB | rgb(28, 97, 191) |
| HSL | hsl(215, 74%, 43%) |
| OKLCH | oklch(50.5% 0.162 257.8) |
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 #1C61BF | 5.98:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #1C61BF | 3.51:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #1C61BF text on white | 5.98:1 | AA | Lc 79.3 | Fine for body text |
| #1C61BF text on black | 3.51:1 | AA large text | Lc -22.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF7
oklch(88.6% 0.044 258)
-
Step 300
300
#A1C3F4
oklch(81% 0.079 257.5)
-
Step 400
400
#6EA2EE
oklch(70.8% 0.125 257.8)
-
Step 500
500
#4588E9
oklch(63.1% 0.161 257.9)
-
Step 600
600
#2570D7
oklch(55.7% 0.174 257.8)
-
Step 700
700 (this color)
#1C61BF
oklch(50.5% 0.162 257.8)
-
Step 800
800
#164C97
oklch(42.7% 0.135 258)
-
Step 900
900
#194078
oklch(37.6% 0.105 257.9)
-
Step 950
950
#102646
oklch(27% 0.066 257.9)
#1C61BF 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) | #286BC2 | 0.030 |
| Deuteranopia (no green cones) | #005DBD | 0.016 |
| Tritanopia (no blue cones) | #007887 | 0.123 |
| Achromatopsia (no color) | #636363 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C61BF
#1C61BF
oklch(50.5% 0.162 257.8)
- #855C00
#855C00
oklch(50.6% 0.105 78.5)
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 #1C61BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.035
- French Blue #436BAD ΔE 0.055
- Warm Blue #4B57DB ΔE 0.065
- Royal Blue #4169E1 ΔE 0.066
- Windows Blue #3778BF ΔE 0.070
- Azul #1D5DEC ΔE 0.071
- Denim Blue #3B5B92 ΔE 0.073
- Flat Blue #3C73A8 ΔE 0.073
Use #1C61BF 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.