#1D58AE
Closest named color: Mid Blue (#276AB3). oklch(47.3% 0.15 258.5), rgb(29, 88, 174).
Aa
White text reads best on this color (6.86:1).
About this color
#1D58AE is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.150 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.052 away. White text reads best on it, at 6.86:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.05:1 |
| White text | 6.86:1 |
Values
| HEX | #1D58AE |
| RGB | rgb(29, 88, 174) |
| HSL | hsl(216, 71%, 40%) |
| OKLCH | oklch(47.3% 0.15 258.5) |
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 #1D58AE | 6.86:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #1D58AE | 3.05:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #1D58AE text on white | 6.86:1 | AA | Lc 83.2 | Fine for body text |
| #1D58AE text on black | 3.05:1 | AA large text | Lc -18.7 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DAF4
oklch(88.4% 0.04 258.8)
-
Step 300
300
#A4C2F0
oklch(80.8% 0.073 258.8)
-
Step 400
400
#73A2E9
oklch(70.8% 0.116 258.4)
-
Step 500
500
#4E88E2
oklch(63% 0.149 258.9)
-
Step 600
600
#3070D0
oklch(55.6% 0.162 258.6)
-
Step 700
700 (this color)
#1D58AE
oklch(47.3% 0.15 258.5)
-
Step 800
800
#1F4D92
oklch(42.8% 0.125 258.6)
-
Step 900
900
#1E4174
oklch(37.8% 0.096 258)
-
Step 950
950
#132644
oklch(27% 0.061 259.2)
#1D58AE 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) | #2461B1 | 0.026 |
| Deuteranopia (no green cones) | #0054AC | 0.018 |
| Tritanopia (no blue cones) | #006D7A | 0.116 |
| Achromatopsia (no color) | #5A5A5A | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D58AE
#1D58AE
oklch(47.3% 0.15 258.5)
- #795400
#795400
oklch(47.4% 0.098 79.1)
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 #1D58AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.052
- Dusk Blue #26538D ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.053
- Cobalt #1E488F ΔE 0.064
- Light Navy Blue #2E5A88 ΔE 0.064
- Dusky Blue #475F94 ΔE 0.064
- Peacock Blue #016795 ΔE 0.064
- Blue Blue #2242C7 ΔE 0.066
Use #1D58AE 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.